diff --git a/lua/dialog.lua b/lua/dialog.lua
new file mode 100644
index 0000000..7dae937
--- /dev/null
+++ b/lua/dialog.lua
@@ -0,0 +1,123 @@
+-- Copyright (c) 2023 tsl0922. All rights reserved.
+-- SPDX-License-Identifier: GPL-2.0-only
+
+local utils = require('mp.utils')
+
+-- pre-defined file types
+local file_types = {
+    video = table.concat({ '*.mpeg4', '*.m4v', '*.mp4', '*.mp4v', '*.mpg4', '*.h264', '*.avc', '*.x264', '*.264',
+        '*.hevc', '*.h265', '*.x265', '*.265', '*.m2ts', '*.m2t', '*.mts', '*.mtv', '*.ts', '*.tsv', '*.tsa', '*.tts',
+        '*.mpeg', '*.mpg', '*.mpe', '*.mpeg2', '*.m1v', '*.m2v', '*.mp2v', '*.mkv', '*.mk3d', '*.wm', '*.wmv', '*.asf',
+        '*.vob', '*.vro', '*.evob', '*.evo', '*.ogv', '*.ogm', '*.ogx', '*.webm', '*.avi', '*.vfw', '*.divx', '*.3iv',
+        '*.xvid', '*.nut', '*.flic', '*.fli', '*.flc', '*.nsv', '*.gxf', '*.mxf', '*.dvr-ms', '*.dvr', '*.wtv', '*.dv',
+        '*.hdv', '*.flv', '*.f4v', '*.qt', '*.mov', '*.hdmov', '*.rm', '*.rmvb', '*.3gpp', '*.3gp', '*.3gp2', '*.3g2',
+        '*.yuv', '*.y4m' }, ';'),
+    audio = table.concat({ '*.mp3', '*.m4a', '*.aac', '*.flac', '*.ac3', '*.a52', '*.eac3', '*.mpa', '*.m1a', '*.m2a',
+        '*.mp1', '*.mp2', '*.oga', '*.ogg', '*.wav', '*.mlp', '*.dts', '*.dts-hd', '*.dtshd', '*.true-hd', '*.thd',
+        '*.truehd', '*.thd+ac3', '*.tta', '*.pcm', '*.aiff', '*.aif', '*.aifc', '*.amr', '*.awb', '*.au', '*.snd',
+        '*.lpcm', '*.ape', '*.wv', '*.shn', '*.adts', '*.adt', '*.opus', '*.spx', '*.mka', '*.weba', '*.wma', '*.f4a',
+        '*.ra', '*.ram', '*.3ga', '*.3ga2', '*.ay', '*.gbs', '*.gym', '*.hes', '*.kss', '*.nsf', '*.nsfe', '*.sap',
+        '*.spc', '*.vgm', '*.vgz', '*.m3u', '*.m3u8', '*.pls', '*.cue' }, ';'),
+    image = table.concat({ '*.jpg', '*.bmp', '*.png', '*.gif', '*.webp' }, ';'),
+    iso = table.concat({ '*.iso' }, ';'),
+    subtitle = table.concat(
+        { '*.srt', '*.ass', '*.idx', '*.sub', '*.sup', '*.ttxt', '*.txt', '*.ssa', '*.smi', '*.mks' }, ';'),
+    playlist = table.concat({ '*.m3u', '*.m3u8', '*.pls', '*.cue' }, ';'),
+}
+
+-- set file type filters
+local function update_default_filters()
+    local dialog_filters = {
+        { name = 'All Files (*.*)', spec = '*.*' },
+        { name = 'Video Files',     spec = file_types['video'] },
+        { name = 'Audio Files',     spec = file_types['audio'] },
+        { name = 'Image Files',     spec = file_types['image'] },
+        { name = 'ISO Image Files', spec = file_types['iso'] },
+        { name = 'Subtitle Files',  spec = file_types['subtitle'] },
+        { name = 'Playlist Files',  spec = file_types['playlist'] },
+    }
+    mp.set_property_native('user-data/menu/dialog/filters', dialog_filters)
+end
+
+-- open Bluray iso or dir
+local function open_bluray(path)
+    mp.commandv('set', 'bluray-device', path)
+    mp.commandv('loadfile', 'bd://')
+end
+
+-- open DVD iso or dir
+local function open_dvd(path)
+    mp.commandv('set', 'dvd-device', path)
+    mp.commandv('loadfile', 'dvd://')
+end
+
+-- open callback with support for Bluray/DVD iso and subtitle file
+local function open_cb(...)
+    local function check_file_type(ext, type)
+        return ext ~= '' and file_types[type]:find(ext)
+    end
+
+    for i, v in ipairs({ ... }) do
+        local path = tostring(v)
+        local ext = path:match('^.+(%..+)$') or ''
+
+        if check_file_type(ext, 'iso') then
+            local info = utils.file_info(path)
+            if info and info.is_file then
+                if info.size > 4.7 * 1000 * 1000 * 1000 then
+                    open_bluray(path)
+                else
+                    open_dvd(path)
+                end
+                break -- do not load other files
+            end
+        end
+
+        if check_file_type(ext, 'subtitle') then
+            mp.commandv('sub-add', path, 'auto')
+        else
+            mp.commandv('loadfile', path, i > 1 and 'append' or 'replace')
+        end
+    end
+end
+
+-- open folder callback with support for Bluray/DVD Folder
+local function open_folder_cb(path)
+    if utils.file_info(utils.join_path(path, 'BDMV')) then
+        open_bluray(path)
+    elseif utils.file_info(utils.join_path(path, 'VIDEO_TS')) then
+        open_dvd(path)
+    else
+        mp.commandv('loadfile', path)
+    end
+end
+
+-- clipboard callback
+local function clipboard_cb(clipboard)
+    mp.commandv('loadfile', clipboard, 'append-play')
+    mp.osd_message('clipboard: ' .. clipboard)
+end
+
+-- message replies
+mp.register_script_message('clipboard-get-reply', clipboard_cb)
+mp.register_script_message('dialog-open-multi-reply', open_cb)
+mp.register_script_message('dialog-open-folder-reply', open_folder_cb)
+
+
+-- init default file types
+update_default_filters()
+
+-- open dialog
+mp.register_script_message('open', function()
+    mp.commandv('script-message-to', 'menu', 'dialog/open-multi', mp.get_script_name())
+end)
+
+-- open folder dialog
+mp.register_script_message('open-folder', function()
+    mp.commandv('script-message-to', 'menu', 'dialog/open-folder', mp.get_script_name())
+end)
+
+-- open clipboard
+mp.register_script_message('open-clipboard', function()
+    mp.commandv('script-message-to', 'menu', 'clipboard/get', mp.get_script_name())
+end)